package demo1;
//接口
public interface ISwiming {
    int a = 10 ;

     void func1();
  default int add(int x,int y,int c){
       return x+y+c;
  }
  public    static void func2(){
      System.out.println("接口的静态方法");
  }
/*  public ISwiming(){



  }*/
}
